Published March 27, 2023 | Version v1
Journal article Open

Unique regolith characteristics of the lunar swirl Reiner Gamma as revealed by imaging polarimetry at large phase angles

  • 1. Physical Research Laboratory, Ahmedabad 380009, India
  • 2. Image Analysis Group, Dortmund University of Technology,Otto-Hahn Str.4,44227 Dortmund, Germany

Description

The uploaded data is used in the publication: Bhatt, M., Wöhler, C., Rogall, J., Aravind, K., Ganesh, S., Bhardwaj, A., 2023.
Unique regolith characteristics of the lunar swirl Reiner Gamma as revealed by imaging polarimetry at large phase angles.
Astronomy and Astrophysics, in press.

We provide detailed physical characteristics of the regolith at the Reiner Gamma swirl. For the first time, systematic telescopic observations at a range of phase angles are used for deriving the surface roughness, opposition effect strength, and grain size distribution at a spatial resolution of 1~km.

The data were acquired between January 5th and March 5th, 2021, with the 1.2 m telescope of Mount Abu Observatory in Rajasthan, India, using the CCD-based imaging polarimeter EMPOL. The image resolution is 1/3 arcsec/pixel, corresponding to about 0.6 km/pixel on the lunar surface. The georeferenced maps are provided in simple cylindrical projection. 

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